1.

Record Nr.

UNINA9910707330603321

Autore

Wilkes Kevin

Titolo

Dynamic modeling of starting aerodynamics and stage matching in an axi-centrifugal compressor / / Kevin Wilkes and Walter F. O'Brien, A. Karl Owen

Pubbl/distr/stampa

Cleveland, Ohio : , : National Aeronautics and Space Administration, Lewis Research Center : , : U.S. Army Research Laboratory, , October 1996

Descrizione fisica

1 online resource (7 pages) : illustrations

Collana

NASA technical memorandum ; ; 107338

Army Research Laboratory technical report ; ; ARL-TR-1107

Soggetti

Aerodynamics

Centrifugal compressors

Turbine engines

Turboshafts

Rotating stalls

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from title screen (viewed July 26, 2016).

"October 1996"--Report documentation page.

"Prepared for the 41st Gas Turbine and Aeroengine Congress sponsored by the International Gas Turbine Institute of the American Society of Mechanical Engineers, Birmingham, United Kingdom, June 10-13, 1996."

"Performing organization: NASA Lewis Research Center and Vehicle Propulsion Directorate, U.S. Army Research Laboratory"--Report documentation page.

Nota di bibliografia

Includes bibliographical references (page 7).



2.

Record Nr.

UNINA9910299684703321

Autore

Davvaz Bijan

Titolo

Fuzzy Algebraic Hyperstructures : An Introduction / / by Bijan Davvaz, Irina Cristea

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015

ISBN

3-319-14762-5

Edizione

[1st ed. 2015.]

Descrizione fisica

1 online resource (X, 242 p. 1 illus.)

Collana

Studies in Fuzziness and Soft Computing, , 1434-9922 ; ; 321

Disciplina

511.322

Soggetti

Computational intelligence

Algebra

Computer science—Mathematics

Computational Intelligence

General Algebraic Systems

Symbolic and Algebraic Manipulation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

includes bibliographical references and index.

Nota di contenuto

Fundamentals of Algebraic (Hyper)Structures -- Fuzzy Polygroups -- Fuzzy Hv-Subgroups of Hv-Groups -- Hv-Rings (hyperrings) and Hv-Ideal -- Connections Between Hypergroups And Fuzzy Sets.

Sommario/riassunto

This book is intended as an introduction to fuzzy algebraic hyperstructures. As the first in its genre, it includes a number of topics, most of which reflect the authors’ past research and thus provides a starting point for future research directions. The book is organized in five chapters. The first chapter introduces readers to the basic notions of algebraic structures and hyperstructures. The second covers fuzzy sets, fuzzy groups and fuzzy polygroups. The following two chapters are concerned with the theory of fuzzy Hv-structures: while the third chapter presents the concept of fuzzy Hv-subgroup of Hv-groups, the fourth covers the theory of fuzzy Hv-ideals of Hv-rings. The final chapter discusses several connections between hypergroups and fuzzy sets, and includes a study on the association between hypergroupoids and fuzzy sets endowed with two membership functions. In addition to providing a reference guide to researchers, the book is also intended as



textbook for undergraduate and graduate students.